Super interesting concept! I had a lot of fun trying to organize the pipes to get complete puzzles. And then I found out you could just spam bullets and take out everything without doing that haha. As others have said, it would be nice to have more incentive to use the intended mechanic.
For the art I really like your ship design, the little rotation when moving, and the in and out interaction with the surface. The small parallax effect on the background is nice too. Subtle details that make the game quite pleasing to look at.
I think my only complaint is that the music got a bit repetitive after a while and I didn't find a way to lower the volume while playing.
All in all it's quite a nice little game with a neat concept. Great job doing all of this solo!